It is not customary for companies to hold public negotiations or threaten other companies of leaking information about IP negotiations with the purpose of hurting stockholders. If Samsung does come out with such a statement I can see the UDC management walking off the negotiations and demanding that Samsung stop the OLED production when the current contract ends. Samsung, which, makes billions from OLED will have to risk (1) being sued by Apple for billions of dollars in losses. (2) sued by UDC the day after the contract ends, and having ALL its phones removed from Japan, US and the European markets. In fact, UDC might make more money in the lawsuits then from Samsung's royalties and material purchase.
Meanwhile, I recommend reading the WSJ today's article on washing machines. It turns out that LG and Samsung have been dumping washing machines in the US market. Each time they are found liable they move the manufacturing to another country so as to avoid the US courts' decisions. Trump, with all his craziness has created a mood in the US that will no longer tolerates the Koreans or Chinese shenanigans. If Samsung chooses to conduct a trade war against the US (and Apple) the US courts and the juries will slap them li never before. The Apple Samsung saga will look like child play. Namely, this would not be about a 5 or 6 design patents. The lawsuit(s) would be about manufacturing, design, chemical compounds across three continents.... in fact, the lawsuits might continue well beyond 5 to 10 years with Samsung being barred from the US markets while the Chinese, Japanese and LG play catch up. For Samsung, not signing a long rm contract will be going nuclear, and for what, a few hundred million dollars?